Beaufort Scale - arimar HERCULES 200 Besitzerhandbuch

2.2.1 Beaufort scale

A numerical scale created by Admiral Beaufort for measuring wind speed
and sea conditions offshore and after a few hours.
Force Description
0 Calm
1 Light air
2 Light breeze
3 Gentle breeze
4 Moderate breeze
5 Fresh breeze
6 Strong breeze
7 Near gale
8 Gale
9 Strong gale
10 Storm
11 Violent storm
12 Hurricane
NOTE
By means of this reference table, you can easily understand the weather
forecasts. For example, "moderate sea" means "near gale" (7) with a wave
height of 2,5 meters. In that case, boats in category "C" cannot navigate.
64
Knots Km/h
<1 <1
1-3 1-5
4-6 6-11
7-10 12-19
11-16 20-28
17-21 29-38
22-27 39-49
28-33 50-61
34-40 62-74
41-47 75-88
48-55 89-102
56-63 103-117
64 118
and more and more
m/sec Sea state
0-0,2 Calm
0,3-1,5
1,6-3,3 Calm
3,4-5,4
5,5-7,9 Smooth
8,0-10,7 Slight
10,8-13,8
13,9-17,1 Moderate
17,2-20,7 Rough
20,8-24,4 Very rough
24,5-28,4 High
28,5-32,6 Very high
32,7
Phenomenal
and more
max.
wave
height
(m)
0
0,2
0,5
1,25
2,0
2,5
4
6
9
14
14
and more
APRIL 2021